Product parameters:

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SL-6 underground metal pipeline anti-corrosion layer detection leak instrument is currently world Shang widely attention of high stability, high anti-interference of novel instrument one of, it can in not dug open complex soil of situation Xia, convenient and accurate to found underground pipeline of to, depth and insulation anti-corrosion layer of leak corrosion points of precise location, makes whole pipeline surface no longer repeatedly was everywhere open lined broke ground of bitter, is oilfield, chemical, lost oil, lost gas, hydropower, sector for guarantee underground pipeline anti-corrosion layer of construction quality check and maintenance check of a detection instrument.

"Feature"
1, power supply adopts Japan original switching power supplies with high reliability, implement intelligent quick charging when charging, without manual control.
2, voltage, output current signal can be automatically converted.
3, DC and AC power supply can be converted automatically.
4, devices using high anti-interference circuit, particularly useful in cities survey and maintenance of networks.
5, transmitter with LCD display, increase output accuracy and performance.
6, instruments ad hoc protection automatic adjustment function, overcome the Achilles ' heel of similar products.
7, instrument line uses a modular structure, three-proof design, greatly improve the instrument of field service life and reliability.
"Technical specifications"
1. leak detection accuracy: ≥ 0.25mm2;
2. position deviation: < 20cm;
3. accuracy: > 98%
4. scope of application: diameter of the oil, gas, water underground corrosion of metal pipes.
(A) transmitter specification:
1. transmit power: 25W, adjustable;
2. transmitting frequency: 1K 0.1Hz, 1-2Hz beat frequency;
3. output impedance matching: 0-100 ω;
4. transmission distance: 50m-5Km (5 kilometres away can move step by step);
5. current: ≤ 3 a, 1-3A adjustable;
6. power supply: 12V (NI-CD batteries or car power supply);
7. weight: 2.8Kg (without battery weight);
8. overall dimension: 99x220x220
(B) detectors technical specifications:
1. sensitivity: 0.1mV;
2. to position deviation: < 10cm;
3. depth: ≤ 5M;
4. power supply: 6V nickel-cadmium battery;
5. weight: 0.9Kg;
6. overall dimension: 165x135x69.
(C) the leak detector specifications:
1. leak detection accuracy: ≥ 0.25mm2;
2. leak detection depth: 0.5M;
3. position deviation: < 20cm;
4. power supply: 6V nickel-cadmium battery;
5. weight: 0.9Kg;
6. overall dimension: 165x135x69.
"Testing principles and methods"
1KHz sent out electromagnetic signals through underground pipes, detector probe when the tangent to the magnetic lines of force perpendicular to the plane, received signal is weak (almost zero) the principle to determine the direction and depth of the pipe.
Leak detection works: Send an AC signal source through pipes into the ground, when the underground pipeline coatings were corroded, the metal part is short with the Earth, formed at the leak current loop, will produce a radiation leak signal to ground, and directly above the point of radiation leakage, according to this principle can accurately find the leak points.
Leak detection methods: ' Human body capacitance method ', is to use the human body do leak detector sensors, when it was near the leak leak detection, leak detector began to react, when walking to the leak is above the line, loudspeaker voice, header instructions, so as to find the exact leak points.